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I too have a 87 blazer and are currently working on my timing. Chiltons says to have 5 degree timing in it although it has little detail, if you get a book you might want to get a hanes. hope it helps

Is there no decal under the hood telling you what it should be? My '86 2.8 Chevy timing is 19 degrees BTDC. I don't know why there is so much difference between vehicles and the years. I'd think all 2.8s would be the same timing?? cheers.

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13y ago

What else can I help you with?